Thrashing maohine-



3 Sheets-Sheet 1.

(No Model.)

H. STEPHAN. THRASHING MACHINE- Padtented June 26., 1883.

Lin s gu k Inventor N. PETERS. Pnnmumn n nu, wnhin mn. n. c.

3 Sheets-Sheet 2.

[Hill-I Patented June 26, 1883.

(110 Model.)

H. STEPHAN. THRASHIQNG MACHINE.- No. 280,258.

, 3 Sheets-Sheet 3. H. STEPHAN. THRASHING MACHINE.

(No ModeL) No. 280,258. Patented June 26,1883.

lo-Lllhographar. Washington. my a UNITED STATES PATENT OFFICE.

HENRY STEPHAN, or SPRINGFIELD, OHIO, ASSIGNOR TO THE SPRINGFIELD ENGINEAND THRESHER COMPANY, OF SAME rLAcE.

'THRASHlNG-MACHINE.

SPECIFICATION forming part of Letters Patent No. 280,258, dated June 26,I883,

Application filed March 5, 1883. (No model.)

To all whom it may concern:

Be it known that I, HENRY STEPHAN, of Springfield, county of Clarke,State of Ohio, have. invented a new and useful Improvement inThreshing-Machines, of which the following is a specification.

' My invention relates to thrashing-machines of the class known asvibrators; and it consists in the construction and arrangement of IOparts whereby a more perfect separation of grain from straw will result;also, less liability to the entanglement of the-straw with the revolvingcylinder; also, a more perfectsepara,

tion of chaff and straw; and by my construc- I 5 tion a more perfectadjustment may be effected of the parts to suit varying conditions ofthe grain, as will hereinafter be more fully specified.

In the accompanying drawings, Figure 1v is a longitudinal verticalsection of a thrashingmachine with my improvements attached thereto.Fig. 2 is an elevation of the front end of the machine. Fig. 3 is anenlarged plan view of the concave and the mechanism 2 5 used to adjustit. Fig. 4-is an inverted elevation of the mechanism used to adjust theconcave. Fig. 5 is a transverse sectional elevation of the concave andits attachments. Fig.

Q is a longitudinal elevation of a machine illus- 0 trating thestacking-elevator in section, and

shortened to suit a limited space in the barn or other receptacle. Thisfigure also illustrates the stacking-elevator raised above the floor ofthe machine in order that thechaff 3 5 may be separated from the straw.Figs. 7 and 8 are views of the vibrating levers that control thevibrating rakes, and are made adjustable. Fig. 9 is a plan view of thestacker.

The same letters of reference indicate the same or corresponding partsin all the figures.

. The vibrating rakes a are controlled by means of slotted andadjustable vibrating lever-arms I). These lever-arms are constructed tobe adjustable as to length of stroke and angle of oscillation in thefollowing manner: The

rakes a are loosely pivoted to the series of vibrating pans c c c, fromwhich they derive their motion. The lever-arms b, by which the motion ofthe. rakes is directed and limited,

are pivoted to each of the aforesaid pans at d,

and extend in an upward direction, in the mam ner shown in Fig. 6, theirupper ends being formed with elongated apertures e. Bolts f pass throughsaid apertures, that have their heads constructed to slide in wayssecured to the framing of the machine through the agency of boltspassing through the slots h.

It will be observed that with this construction the bolts f may beadjusted in the aperture 6 to change the oscillation of the arms I),thus making them vibrate more or less, as desired, and the slides g, bymeans of the slots h, may

be placed at any angle to change the angle of oscillation of thelever-arms b and the rakes which they control. The pans c are perforated in the customary manner and receive a transverse vibrating motion.The pans c and c are not perforated, and receive'a vibrating motion fromthe pitmen m a, which, in their turn, derive motion from the crank-shaft1), that is actuated in the customary manner. The toothed cylinder q isrotated by means of pulleys and belts,*and the concave 1', that islocated immediately below it, is adjustable in an upward direction, soas to be brought nearer 7 5 to or farther from the cylinder q. I obtainthis adjustment of the concave by means of a screw, 8, a threaded slide,2, a box, It, leversv o, and links 10 w. The levers o o are pivoted tothe board as at y 3 and the links w w are pivoted to the levers c v atone end and to the concaver at the other end by means of pintles z.

' It will be observed that one end of each of the levers v v is isnertedinto the screw-box t, 8 5 so that by turning the screw 8 in eitherdirection the box twill be moved up or down, there by causing the leverso o to oscillate upon the pivots y y and the linksw w to move the 0011-cave ainto any desired vertical adjustment o relatively to the cylinderq. The concave r is provided with a diagonal chute board", a, whichconfines the scattering grain to the action of the machine. If any looseor scattering grain should pass the concave, the board a will ar- 9 5rest it and return it to the pans c, c, and c, and it will therebybecarried back to the proper avenue of escape through the agency of thechute-board b and perforated screens b b. The pan 0 is perforated in theusual manner, Ioo

and is inserted between the vibrating pans c and the perforated pan 1).I use this pan to arrest any grain that might otherwise pass away withthe straw also to assist in the separation of chaff from grain andstraw, thereby assisting the riddle of perforated pan 1) in its work ofseparation.

Back of thecylinder q, I locate a stationary board, (1 to act as ashield between said cylinder'and the rotary beater c. I use this shieldto prevent the beater e from throwing the dust and other light matterinto the face of the operator, who would be standing on the table f. Thebeater a rotates at a rapid rate, and is used for the purpose of takingthe straw from the cylinder (1 as fast as it passes through or under thesame, thus obviating the wrapping of straw around said cylinder andchecking the flyinggrain thrown from the cylinder, forcing it down onthe separating-pans, where it will be carried back to the fan and shoe.

As an additional security against flying grain, I use a gravitatingshield, g, and sta tionary shields h h, which also assist in directingthe grain to the separating-pans.

Under the beater 0 there is a grate, m,which forms an avenue of escapefor a large portion of the thrashed grain, which, by passing through it,falls into the separating-pans, where it is entirely under and separatefrom the straw, whereby the separating capacity of the machine isgreatly augmented by having such a separation take place immediately atthe cyl-- inder, instead of leaving the whole work of separation for therakes to perform. The feedboard 01/ is attached at one end to theconcave r, and-at the other end fits loosely into metallic shoes 0,attached to each side of the framing 1), by which arrangement it iscaused to move with said concave, and thereby their relative positionsare preserved.

The stacking device, which I use at the exit end of the machine for thepurpose of elevating the straw as it is delivered from the vibratoryrakes a to any suitable receptacle or place of deposit, is madeadjustable in length by means of the two parts q r. Then it becomesdesirable to elevate but a short distance fromthe limited space atdisposal, or from other causes, the part a" is detached from the part q,and the upper end of the part q is provided with stationary auxiliarypulley s, for the re ception of the conveyenbelts, and by theapplication of short conveyer-belts the stacker will be ready for use,in the manner illustrated by Fig. 6. WVhen both sections are used, thestacker will appear as shown in Fig. 1.

To hold the stacker in place the customary guy-ropes, s, and windlass tare used. It is often found in practice that more chaff mixes with thestraw than is desirable. To obviate this difficulty I provide recessesor receptacles a in the end framing of the machine, said receptaclesbeing so located as to elevate the/ near conveyor-shaft 12 above thebottom of the machine, and thereby leave a vent between a the bottom ofthe machine and the bottom of the conveyer for the escape of the chaff.For an illustration, see Figs. 1 and 6. The two sections of thestacking-elevator, when both are in use, are joined together by means ofcorresponding perforations, 10', formed ineach of the sections, throughwhich screw-bolts pass. These perforations are formed in metallic piecesrigidly secured to the framing of the stacking-elevator; and in each ofthe metallic pieces that are joined to the parts q aperforation, 00, isleft for the reception of thestuds upon which the auxiliary pulleysrevolve. It

will be understood that is the customary fan and z the elevator. It willbe also un derstood that the perforated pans 0 extend all across thefull width of the machine.

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is

1. The combination of the cylinder, the beater q, the separating-pans,thegravitating shield g, and stationary shield h, for directing thegrain to the separating-pans, and the grate m, located near thecylinder, between the pans and beater, to receive the grain directed bythe shields and pass it to the pans separated from the straw,substantially as and for the purpose set forth.

2. The concave r, provided with diagonal board a and pintlesz, incombination with the links w w, swung on the pintlesof the concave, theslide 2, the pivoted levers v o, hinged at one end to the links 10 w,and at the other end resting in the slide 25, a box, a, forthe slide tomove in, and a screw, 8, for operating the slide, substantially as andfor the purpose set forth.

3. The combination of the vibrating rakes a, levers 72, secured theretoat one end, and having apertures e at the other end, the slides 9,having apertures g, and transverse slotsh, and connecting-bolt f,substantially as and for the purpose set forth.

4. The combination of sections q r, the stacker, a connecting-plateprovided with perforations x, the auxiliary pulleys s, and bearingstudstherefor, fitting into perforations 00,

substantially as and for the purpose set forth. In testimony whereof Ihave hereunto set my hand this 27th day .of February, 1883.

HENRY STEPHAN.

W'itnesses HENRY MILLWARD, I. RICHARDS.

